baber/WOPTO huggingface dataset:
Patent GB-856186-A (GB)
Title: Improvements in rotational casting
Inventor: REKETTYE PAUL
IPC: B29C33/36
Filed: 1957-07-26
Abstract: 856,186. Centrifugal moulding. SUN RUBBER CO. July 21, 1958 [July 26, 1957], No. 23830/57. Class 87(2). Hollow articles are cast from synthetic resin, e.g. vinyl resin, plastisols by charging a cool mould or series of moulds with a predetermined amount of plastisol and then subjecting them to strong rotative forces on a first axis while heating to the gelling temperature of the plastisol followed by simultaneously applied weaker rotative forces about the first axis and a second divergent axis while heating to the fusion temperature. The moulds are rotated at a slow rate about the first axis before the application of heat to distribute the plastisol and uniformly heat the moulds and following the application of heat, the temperature of the moulds is reduced while rotating them at a slow rate about the first axis. In the spparatus described the mould carrying arm 35 comprises an outer shaft 37 coaxially rotatable upon an inner shaft 36, the outer end of the latter carrying a T-shaped transmission block 38 in which a cross-shaft 39 is rotatably journalled transversely of the shaft 36. At one end the crossshaft has a mitre gear 40 meshing with a gear 41 on the outer shaft 37 so that rotation of this shaft causes the mould carriers 22 mounted on the cross-shaft to rotate on a transverse axis (the " first " axis) while rotation of shaft 36 causes rotation about a longitudinal axis (the " second " axis). The rotation of these two shafts 36, 37 is brought about by the apparatus shown which has a vertical post 30 on which is mounted a hub block 50, shaft 36 being journalled in this hub block which has a gear 51 carrying a friction clutch cone 52 journalled on the shaft 36. Gear 51 is driven by a gear 153 carried by a sleeve 154 rotatably mounted on the upper end of the post 30 and the lower end of this sleeve carries a large gear 155. The inner end of the inner shaft axis 37 is journalled around a bearing sleeve 54 carried on the shaft 36. A gear 55 carrying a friction clutch is journalled on the shaft 37 and driven by a gear 157 having a hub portion 158 carrying a large gear 159. Gears 158, 159 are driven by electric motors 166, 164 respectively. Electric motor 84 drives the moulds about the transverse axis at a high speed (50-150 R.P.M. compared with 2-30 R.P.M. for the other rotations) by means of a gear and chain mechanism when the clutch means referred to above have disengaged motors 164, 166. In one form of the machine, the hub block 50 carries three mould carrying arms 35 and is mounted in a turret 31. An indexing device is used to rotate the turret by means of a rack and pinion device 73, 74 so as to move the arms successively from a stripping and loading station to a curing oven 24 and thence to a cooling station.
Patent GB-166057-A (GB)
Title: Improvements in apparatus for syphoning liquids
IPC: B67D7/00
Filed: 1920-08-16
Abstract: 166,057. Rotherham, K., and Johnson, W. Aug. 16, 1920. Siphons. - In siphons fitted with priming-pumps the one-way valve J, Fig. 1, at the bottom of the barrel may be closed by a part H<2> on the piston in order to arrest siphoning and retain the siphon charged. In a modification, the one-way valve K, Fig. 2, in the piston is closed by contact with a member E<2> when the piston is at the top of its stroke. A catch &c. may be used to hold the piston in the valveclosing position.
Patent GB-259020-A (GB)
Title: Improvements in or relating to pumps for oil drums and like receptacles
IPC: B67D7/32
Filed: 1925-09-24
Abstract: 259,020. Jones, J. H. Sept. 24, 1925. Suction reservoirs; waste liquid, catching and returning. - An oil drum &c. 10 fitted with a pump 16 is provided with a cover 11 carried by the pump or drum and enclosing the top of the drum and the pump. An opening closed by a door 14 gives access to the pump and provides for the insertion of vessels to be filled. In another form, the bottom of the cover is dished and retains drips from the pump to the drum. The cover is secured to the edge of the drum by jaws and screws 13.
Patent GB-376069-A (GB)
Title: Improvements in and relating to tobacco pouches
IPC: A24F23/02
Filed: 1931-08-25
Abstract: 376,069. Tobacco pouches. DUNHILL, Ltd., A. and DUNHILL, V., 137, High Street, Notting Hill Gate, London. Aug. 25, 1931, No. 23904. [Class 133.] A tobacco pouch consisting of a double or tubular strip of flexible material a, oiled silk for example, has a pocket b at one end, an opening c at the other end for the introduction of tobacco, and an opening d to permit the passage of tobacco from the tubular strip a to the pocket b. Suitable fastening means such as a flap or zip fastener may be provided for the opening c. Specification 13556/06, [Class 133, Trunks &c.], is referred to.
Patent GB-787691-A (GB)
Title: Improvements in or relating to amplifying and rectifying circuit-arrangements
IPC: G01R19/22
Filed: 1955-08-19
Abstract: 787,691. Measuring instruments. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 19, 1955 [Aug. 24, 1954], No. 23974/55. Class 37. In a circuit for producing a D.C. voltage varying linearly with an applied A.C. the input is applied to a transistor amplifier 2, 3, the output of which is applied to a rectifier 5 and an impedance 7 in the input circuit of the amplifier to produce current feedback. The D.C. operates a meter 6 and the feedback increases the input impedance. The resistor 4 and capacitor 8 may be replaced by a transformer and the bridge 5 replaced by a simple two-rectifier arrangement.
Patent GB-504882-A (GB)
Title: Improvements in and connected with control means for reversible internal combustion engines
IPC: F01L13/00
Filed: 1938-08-15
Abstract: 504,882. Reversing. TUGWOOD,R.J. (Schichau Ges., F.) Aug. 15, 1338, No. 23986. [Class 7 (v)] The engine cam shaft is adjusted angularly for reversing by a screw device forming part of the cam-shaft drive and comprising an element displaceable axially by a servo-motor, the member of the servo-motor which effects the axial displacement being rotatable with the displaceable element. In one form, Fig. 1, a screw part 5 on the cam-shaft 2 is engaged by internal threads in a hollow gear wheel 4 having external teeth driven from a gear wheel 3 on the engine shaft 1. The wheel 4 is connected by a sleeve to a fluid-pressure piston 11 by which it is moved axially to effect angular adjustment of the cam-shaft. In a modification. Fig. 5, the wheel 4 and an integral piston part 4b are housed within a sprocket wheel 3a through which the cam-shaft is driven. The wheel 3a is bolted between hollow shaft parts 16, 16a running in bearings 14, 14a. The wheel 4 has straight external teeth meshing with internal teeth in the sprocket wheel, and internal helical teeth or threads engaging helical teeth 18 on a sleeve 5 keyed to the cam-shaft. Pressure is admitted to either side of the piston part 4b through ducts 9, 9a or 10, 10a.
Patent GB-696263-A (GB)
Title: Improvements in watertight potentiometers
IPC: H01C10/32
Filed: 1951-10-15
Abstract: 696,263. Variable contact resistances; mounting terminals. SOC. FRANCAISE DE L'ELECTRO-RESISTANCE. Oct. 15, 1951 [May 31, 1951], No. 24034/51. Addition to 684,067. Classes 37 and 38 (i). The liquid-tight radio-type potentiometer disclosed in the parent Specification is primarily modified by providing a separate metal cover 3, Fig. 1, which is sealed to the metal casing 1 by turning down the cover edge 33 and pressing it around the downturned edge of the casing 1. The cover 3 has a triangular raised portion 34, Fig. 2, formed with cells or recesses 65 through which project the terminals 5, 6, 7 with each of the latter externally pinched to produce pairs of lugs at 5<SP>11</SP> &c. The latter are soldered or otherwise secured to corresponding enclosing metal tubes which in turn are sealed to glass or synthetic resin beads 35, 36, 37 which close the recesses 65 and are sealed to metal rings soldered in the recesses 65. The plastics moulding cover 2 which supports the resistance track 8 is formed with an assembly keying projection, Fig. 3 (not shown). The sliding springy-metal contact, Fig. 4, is modified by provision of lugs 41, 42.
Patent GB-653041-A (GB)
Title: Improvements relating to filters
IPC: B01D35/00
Filed: 1948-09-15
Abstract: 653,041. Liquid filters. BENTON & STONE, Ltd., and MILNER, C. E. Sept. 15, 1948, No. 24203. [Class 46] A filter, particularly for liquid fuel or lubricating oils comprises a body made of relatively rotatable parts a and g and adapted to serve as the flow controlling means, a spindle h interconnecting the two parts, a removable glass or other cup-like part m removably attached to the part g as by stirrup n, a filtering medium q of annular disc-like form secured between the body part g and the part m and a deflecter s mounted on the spindle h beneath the filtering medium q the body part g being provided with an extended inlet r which passes through the filtering medium q.
Patent GB-489816-A (GB)
Title: A method of jointing chair rails to legs
IPC: F16B12/46
Filed: 1937-09-06
Abstract: 489,816. Carpenters'joints. TURNIDGE, W. G. Sept. 6, 1937, No. 24244. [Class 20 (ii)] A carpenter's joint for use in furniture frames and the like comprises integral means for joining two members together at an angle, and a third member slotted to receive the ends of the other members. As shown for a chair construction two rail members d, g are provided with end tenons l, h having interfitting toothed extremities f, i respectively and the third member a is provided with mortice slots b, c, to receive the tenons of the other members, the teeth interfitting within the third member. The end of the tenon h extends beyond the side of the tenon e in the third member. The teeth of the tenons may have rounded extremities and may be cut, so that the tenons are expanded slightly at their extremities when the teeth are interfitting. The sides of the two members d, g may be slotted to receive the ends of a diagonal connector piece l.
Patent GB-436412-A (GB)
Title: Improvements in fuel feeding devices for internal combustion engines
IPC: F02M63/00
Filed: 1934-08-22
Abstract: 436,412. Fuel admission devices. BLANDING, J. E., 60, Jay Street, New London, Connecticut, U.S.A. Aug. 22, 1934, No. 24247. [Classes 7 (iii) and 7 (vi)] Fuel, entering a casing 25 at 28, flows past a valve 26 on to a pointed adjustable plug 29 and, together with air admitted through ports 32, passes through passages 30 into a mixing chamber 31. The fuel and air are delivered through grooves 11 in the stem of a valve 8 into a chamber 15 and enter the cylinder through apertures 17. The valves 8, 26 are operated by a push-rod 24 through levers 23, 38 and 36 and the fuel supply may be controlled by operating a rod 42 to vary the position of a cam 39 near the end of the lever 36. The casing 25 is secured to the casing 19 by bolts and may be removed without disturbing the valve 8.
Patent GB-1419887-A (GB)
Title: Resins containing sulphur
IPC: C22B3/00
Filed: 1973-05-22
Abstract: 1419887 Resins containing dithioic acid groups KYOWA HAKKO KOGYO CO Ltd 22 May 1973 [22 May 1972] 24285/73 Heading C3P Cross-linked polymers of vinyl aromatic compounds containing dithioic acid groups or salts thereof are obtained by haloalkylating a crosslinked polymer and further reacting with sulphur and an alcoholate. The products form complexes with metal ions, e.g. mercury, silver and gold and can be used to adsorb these from solutions; they are regenerated with a metal sulphide or hydrosulphide.
Patent GB-383676-A (GB)
Title: Improvements in bed-warmers
IPC: A61F7/00
Filed: 1931-08-28
Abstract: 383,676. Bed-warmers: GRIMASON, J. S., Constitutional Club, Northumberland Avenue, London. Aug. 28, 1931, No. 24299. [Class 64 (ii).] A bed-warmer comprises a sheet metal chamber F heated electrically by an element I and suspended by hooks G from a bar E forming part of a frame A. The horizontal members B of the frame are adapted to lie beneath the foot of the mattress, so that the frame holds the bed-clothes away from the mattress and supports the heater in the space thus formed.
Patent GB-774790-A (GB)
Title: Improvements in or relating to the production of porous flexibe sheet material composed of adhesives and bonded fibres
IPC: D04H1/645
Filed: 1953-09-02
Abstract: 774,790. Agglutinated fibrous sheet material. FREUDENBERG, KOMM. - GES. AUF AKTIEN, C. Sept. 2, 1953 [Sept. 3, 1952], No. 24304/53. Class 140. Porous sheet material similar to fabric or leather is made by impregnating a fibre fleece with an aqueous dispersion or emulsion of natural or synthetic rubber or a resilient thermoplastic synthetic resin to give a dried solid deposit of 25-65 per cent of the weight of the dried impregnated fleece, and also incorporating in the fleece a water-soluble preliminary or intermediate condensate of an aldehyde such as formaldehyde with a phenol, which may be polyhydric or alkyl-substituted, urea, thiourea, dicyandiamide or melamine in a proportion of 1-10 per cent based on the weight of the impregnant, the condensate being ultimately converted into the water-insoluble final product. The aqueous dispersion may be used in the form of a foam. The fibres, if desired after washing or boiling and drying, may be formed into thin, loose carded webs, a number of which are superposed to form a fleece. The condensate may be added to the foamed aqueous dispersion or emulsion, may be applied in a subsequent impregnation, or some may be applied in both these ways. The fibres may be cotton, ramie, flax, jute, wool, human or animal hair, viscose or acetate rayon, nylon, polyvinyl, polyacrylic, polyvinylidene, polyethylene, or polyester fibres, casein, alginate, glass wool, or asbestos. Copolymers of butadiene - styrene or butadiene - acrylonitrile with chloroprene may be used as the adhesive, compounded with wetting agents, age-resisters, dispersing agents, thickening agents, antioxidants, fillers, vulcanizing ingredients and water-soluble salts to be washed out later so as to leave pores. Examples of each class of additive are specified. Wax, paraffin, glycerine, glycols and aluminium salts may also be added. The fleece may be stabilized before impregnation by a light surface treatment with a small quantity of binder. Vulcanization and curing of the condensate may be effected by the same heating operation in one or more stages, each followed by washing to remove water-soluble components. The curing of the condensate may be promoted by the addition of caustic soda, barium chloride, lactic acid, sulphonic acids or salts thereof, soaps obtainable from fatty acids and ammonia, hexamethylene tetramine, or other specified catalysts. A fleece made from a mixture of cellulose acetate staple fibre, nylon, ramie, and viscose rayon staple fibre may be impregnated with a soft synthetic rubber. Other fleeces treated comprise cotton, viscose rayon staple fibre and, if desired, ramie fibres.
Patent GB-1268043-A (GB)
Title: Hydraulic pump control
Inventor: KEMPSON BERTRAM CARL
IPC: F04B1/08
Filed: 1968-05-22
Abstract: 1,268,043. Hydraulic reciprocating-piston pumps; rotary pumps. DOWTY HYDRAULIC UNITS Ltd. May 21, 1969 [May 22, 1968], No. 24314/68. Headings F1A and F1F. To restrict the maximum torque at a shaft 1 driving reciprocating-piston pumps 7, 8 of the tilting-head type a spring-loaded piston 19 changes the attitudes of the heads 9, 11 so as to reduce the rate of flow through delivery pipes 17, 18 when the mean pressure in the latter reaches a predetermined value, said pressure being determined by the provision of flow restrictors 26, 27 and applied to a valve-member 31 that regulates the flow of hydraulic fluid through a restrictor 35 to a cylinder 21 (for the piston) and/or a reservoir 34. The arrangement shown in Fig. 1 may be adapted for more than two pumps driven by the shaft 1. In a second embodiment, Fig. 3, the pumps 7, 8 include gear-pump units 41--44 and two pairs of restrictors 55--58 are provided between the pipes 17, 18 so that the mean pressure in the latter can be applied to independent hydraulically-actuated valves 61, 65. Initially all of the units supply liquid to the pipes 17, 18 through non-return valves 47, 49, 52, 54, the valves 61, 65 being closed. When the mean pressure rises to a first value the valve 61 opens to unload the units 42, 44 by connecting them to a reservoir 45 through non-return valves 67, 68, similar valves 49, 54 preventing connection of the units 41, 43 to the reservoir. When a second value of mean pressure is reached the valve 65 opens to connect the units 41, 43 to the reservoir through non-return valves 69, 71 and, as a consequence, allow a non-return valve 70 to open and thereby effect closure of the valve 61 so that the units 42, 44 once again supply liquid to the pipes 17, 18. The units 41, 43 have displacement rates that are double those of the units 42, 44. The restrictors 55, 56 may be dispensed with and a pipe 59 connected to a pipe between the restrictors 57, 58 by way of another flow restirctor (60), Fig. 4 (not shown).
Patent GB-1038876-A (GB)
Title: Organopolysiloxane process
IPC: C08K5/56
Filed: 1963-06-19
Abstract: Platinum-olefin complexes, for catalysing the addition of Si-bonded H atoms to Si-bonded vinyl or allyl radicals (see Division C3), are made, according to the examples, (1) by refluxing for two hours an ethyl alcohol solution of chloroplatinic acid hexahydrate, concentrating the resulting solution at room temperature by removing excess alcohol, extracting the resulting gummy, orange residue with chloroform, and removing the chloroform by vacuum to yield a yellow powder having the formula H(PtCl3.C2H4); and (2) by dissolving K2PtCl4 in aqueous HCl in a pressure vessel, flushing the vessel with nitrogen, passing ethylene into the vessel under pressure and placing the reaction mixture in a vacuum desiccator to remove solvent and yield crystals which on purification form a yellow powder of (PtCl2.C2H4)2.  Reference has been directed by the Comptroller to Specification 923,710.
Patent GB-816476-A (GB)
Title: Improvements relating to semi-conductor rectifying circuit arrangements
IPC: H01L29/73
Filed: 1955-08-25
Abstract: 816,476. Junction rectifiers. GENERAL ELECTRIC CO. Aug. 25, 1955 [Aug. 27, 1954], No. 24477/55. Class 37. A rectifying circuit comprises a semi-conductor body having a PN junction which performs the rectification, and a pair of additional ohmic contacts to one of the junction zones by means of which a transverse electric field is applied to deflect stored carriers during reverse half-cycles, thereby reducing reverse current. In the Figure, the A.C. to be rectified is applied between electrodes 17 and 18, electrode 17 being connected to N-type zone 15, and electrode 18 to a P-type zone 13 adjacent zone 15. A constant voltage is applied between ohmic electrodes 23 and 25 to provide an electric field in zone 15 in a direction transverse to the current path between electrode 17 and the PN junction.
Patent GB-426787-A (GB)
Title: Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines
IPC: E21C35/193
Filed: 1933-09-04
Abstract: 426,787. Coal &c. cutting machines. BRITISH JEFFREY - DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and JEFFREY, R. K., 8, Sessions Village, Bexley, Columbus, Ohio, U.S.A. Sept. 4, 1933, No. 24512. [Class 68 (i)] A cutter or pick for use in coal &c. cutting machines has three symmetrically-arranged cutting points adapted to be placed in turn into cutting position. In Fig. 4, the cutter 44 is held between clamps 47, 48, by a bolt 49 engaging a boss 42 on the cutter box link, the clamp 48 having a shoulder engaging a seat 52 on the boss and the seats 52 of the various bosses being formed to different angles to determine the set of the cutter; the chain comprises two sets of cutter box links, each set being formed of identical castings with the bosses 42 of one set projecting to one side and the bosses of the other set projecting to the other side, the seats 52 being formed as by milling. Each boss may have more than one seat 52. The cutter has three points 45, Fig. 8, and a flat front face, the points being of triangular section with reinforcing ribs 46 ; the engaging faces of the clamps 47, 48, are of corresponding form and the clamp 48 has a lower recess 54 and lateral lugs 55 co-operating with a lower lug and lateral chamfered surfaces on the clamp 47. In Fig. 10, the cutter is similarly held between clamps 57, 58, reversibly held by a screw 59 engaging either of two bosses 60 ; the cutter box links all may be formed of identical castings placed in reverse positions so that the bosses 60 project to opposite sides. In Fig. 12, the cutter box has a transverse groove with sloping edges 80 against either of which two cutters are held by a clamp 81 secured by wedge block 82 and bolt 83. In Figs. 16 and 18, the cutter 98 is formed as a hollow triangular pyramid, the clamp 99 having a rim 102 embracing the cutter while the clamp 100 has a nose entering the cutter, the parts being fixed by a bolt 106 while the set of the cutter is determined by a pin passing through apertures in the clamps and into one of a series of holes 110 in the cutter box ; a screw 107 in the clamp 99 enters an annular groove 108 in the bolt. The cutter may have an aperture in its apex engaged by a projection on the clamp 100 or it may be solid as in Fig. 25, and may have a pin 111 and recess 112 for engagement with the clamps ; the points of the cutter may be rounded. In Fig. 28, the clamps 99, 100 have shanks pivotally interlocking at 118 and held in a standard cutter box 115<a> by a screw 119 ; the clamp 100 has a projection 120 tending to prevent removal and a spring 121 lifts the clamps on release of the screw. In Fig. 30, the shanks of the clamps are each semicircular to permit ready reversal of the cutter, and are forced downwardly into the cutter box by the conical end of a screw 119 entering a conical recess 122. Specifications 426,711 and 426,940 are referred to.
Patent GB-975811-A (GB)
Title: Improvements in or relating to ships propellers
IPC: B63H1/28
Filed: 1960-07-14
Abstract: 975,811. Screw propellers. E. E. TULLY, and T. A. H. J. FLETT. Oct. 12, 1961 [July 14, 1960], No. 24513/60. Heading B7V. A ship's propeller has a single aperture 11 in its driving surface which communicates, by a curved passageway 12 and a passageway 13 in the boss, with an aperture 15 in the rear end of the boss. The aperture 11 is located at a distance from the root of the blade of approximately one-third of the distance from root to tip and is closer to the trailing edge than the leading edge. Specification 396,716 is referred to.
Patent GB-837038-A (GB)
Title: Screw threaded members
Inventor: COOP JOHN DREYFUS
IPC: F16B37/12
Filed: 1957-08-03
Abstract: 837,038. Self-tapping screws. BRUCE & BROWN Ltd. Aug. 5, 1958 [Aug. 3, 1957], No. 24675/57. Class 83 (3). [Also in Group XXV] A self-tapping screw 1 has a slotted and tapered leading end 3, a screwed axial bore 7, and one or more turns of thread 2 knurled or serrated at the crest 4, to lock the screw when screwed home in a bore. Specifications 668,818 and 734,063 are referred to.